How Fast Does a Traxxas Slash 2WD Go? Brushed vs Brushless, 2S vs 3S
How fast a Traxxas Slash 2WD goes depends on its version. The brushed XL-5 model does 30+ mph on a 7-cell NiMH pack. The BL-2s brushless version is rated around 35+ mph on 2S. The VXL brushless version does 35+ mph on 2S LiPo, 50+ mph on 3S LiPo without a gearing change, and 60+ mph with 3S and optional speed gearing. These are Traxxas’s ratings; real speeds depend on surface, battery and setup.
By Kyle HilsonUpdated: October 20264 min read
Speeds by version
| Version | Battery | Rated speed |
|---|---|---|
| Slash 2WD XL-5 (brushed) | 7-cell NiMH | 30+ mph |
| Slash 2WD BL-2s (brushless) | 2S LiPo | about 35+ mph |
| Slash 2WD VXL (brushless) | 2S LiPo | 35+ mph |
| Slash 2WD VXL | 3S LiPo | 50+ mph |
| Slash 2WD VXL | 3S + optional speed gearing | 60+ mph |
Traxxas ratings and dealer listings, checked October 2026. Check which ESC your truck has; brushed and BL-2s versions are not rated for 3S.
What changes the speed
- Battery voltage: 3S gives far more speed than 2S, where the electronics allow it.
- Gearing: a larger pinion or smaller spur raises top speed but adds heat.
- Surface: a smooth car park lets it reach top speed; grass and dirt slow it down.
- Tyres: worn or ballooning tyres change speed and handling.
- Battery health: an old pack sags and loses speed.
Going faster safely
- Only use 3S on a version whose ESC and motor are rated for it.
- Upgrade gearing in steps and check motor temperature after a few minutes.
- Expect more wear: driveshafts, diff and tyres take a beating at 50+ mph.
- A 2WD truck at high speed is hard to control; practise in open spaces.
- Use the LiPo cutoff on the ESC to protect batteries.
Run time vs speed
Going faster drains the battery faster, so a speed-geared truck on 3S runs for less time than a stock truck on 2S. Run times and battery care are covered in how long a Traxxas battery lasts. Use packs with enough discharge capability and let them cool before charging.
How to measure speed
Traxxas telemetry sensors with a TQi radio and the Traxxas Link app can show speed, and small GPS speed loggers that strap to the chassis are another option. Make several runs in both directions on a flat surface to average out wind and slope. Radio setup is described in how to link a Traxxas TQ remote.
2WD handling at speed
The Slash 2WD is rear-wheel drive, so it’s playful and slides easily. That’s great fun on dirt but makes it twitchy at high speed on pavement. Training Mode on Traxxas ESCs limits power for beginners, and gentle throttle on corner exits keeps it straight.
Speed upgrade checklist
- Confirm ESC and motor ratings.
- Good 3S LiPo with the right connector.
- Optional pinion matched to the spur.
- Temperature checks after each run.
- Spare driveshafts and diff parts.
Which Slash 2WD do you have?
Look at the ESC label and the motor. The XL-5 ESC with a brushed Titan motor is the basic version; a BL-2s label means the newer brushless 2S system; a VXL-3s ESC with a Velineon motor is the 3S-capable brushless version. The box and manual also say which you have. Knowing the version tells you which batteries are safe and how much speed is realistic, so check before buying batteries or gears.
FAQ
How fast is a stock Traxxas Slash 2WD?
About 30+ mph brushed; 35+ mph brushless on 2S.
Can the Slash 2WD do 60 mph?
The VXL version is rated 60+ mph on 3S with optional gearing.
Can I run 3S in my Slash?
Only in VXL versions rated for it.
Does speed reduce run time?
Yes, higher speed drains packs faster.
More on this topic: the complete RC Cars guide covers the basics behind this article.
About 20 years in RC. Mostly boats in the NAVIGA Mini Eco Expert class, with many self-made parts; also a King Motor Baja 5B, a home-built electric plane, home-built nitro planes he has flown, and an RC helicopter. More about SwellRC
